bunq Liechtenstein API Access & Open Banking

bunq is the mobile-first European neobank, and its Liechtenstein presence lets residents and businesses run everyday banking straight from an app. If you want that account data outside the app — in a spreadsheet, a bookkeeping tool, or your own script — open-banking.io gives you a single, private route to it. There is no certificate to buy, no eIDAS setup, and no vendor that can read your figures: your bunq data is decrypted on your own device with a key that never leaves you.

open-banking.io covers 2,600+ European banks under PSD2. For bunq Liechtenstein you can link personal and business accounts, each consent stays valid for up to 180 days before a quick renewal, and no BIC is required to get started.

How to connect bunq

Connecting happens entirely inside the open-banking.io dashboard — there is no API call or key involved in this step.

  1. Sign up for open-banking.io and set your encryption passphrase. Your keys are generated locally, so only you can later unlock the data.
  2. In the dashboard, choose bunq (Liechtenstein) and pick the account type — personal or business.
  3. You are redirected to bunq's own secure login, where you approve access under PSD2 consent. Your credentials are entered only on bunq's screen.
  4. Once approved, your accounts and transactions sync into your dashboard automatically.

Access your data

Programmatic access is an optional step you take after the account is linked. On the Developers page, create an API key and export a credentials.json — this bundles the API key with your private decryption key. From there you can use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API. Requests carry your key in the X-Api-Key header, and every response is decrypted locally with your own key. Because open-banking.io holds only your public key, an API key on its own returns ciphertext — never readable data — which is what keeps the service zero-knowledge.

FAQ

Do I need an eIDAS certificate for bunq?

No. open-banking.io is certificate-free; you just sign up and approve access on bunq's login screen.

Can bunq business accounts be linked?

Yes — both personal and business bunq (Liechtenstein) accounts are supported.

How often do I re-authorise?

Each consent lasts up to 180 days, after which you re-approve on bunq's screen in a few seconds.

Start at open-banking.io.